<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="../vue.js"></script>
</head>

<body>
  <div id="app">
    <button @click="upData">排序</button>
    <button @click="upData2">过滤</button>
    <ul>
      <li v-for="item in person">{{item}}</li>
    </ul>
  </div>
  <script>
    Vue.config.productionTip = false;

    const vm = new Vue({
      el: "#app",
      data() {
        return {
          person: ["laowang", "xiaoli", "haihai"]
        }
      },
      methods: {
        upData() {
          this.person.sort()
        },
        upData2() {
          this.person = this.person.filter(item => {
            return item !== "laowang"
          })
        }
      }
    })
  </script>
</body>

</html>